Question

If the Earth stops rotating about its axis, the value of g at the equator will increase by ……………….. where R is the radius of Earth and co is the angular velocity or rotation. (Class 11)​

Answer 1

Explanation:

Effect of rotation of earth on acceleration due to gravity,  gλ=ge−Rew2cos2λ    where w  is the angular velocity of the rotation of earth and λ is the lattitude.

Now at poles,  λ=90o⟹gpoles=ge=constant

Thus as the earth stops suddenly then gλ increases by an amount of Rew2cos2λ everywhere except at